elidable terminator: terminate numeral or letteral string.

- bolci
- x
_{1}is a ball/sphere/orb/globe [shape/form] of material x_{2}; x_{1}is a spherical object [made of x_{2}].

- boi'e'u
- mekso operator/function terminator (in Polish notation): inserts exactly enough "{boi}"'s consecutively so as to terminate the most recently uttered operator/function in a mekso expression
- bantu'asu
- x
_{1}is the language with ISO 639-3 code “tas” (Tay Boi). - cmavrboi
- x
_{1}is the selma'o "BOI". - ka'i zei sumtika
- x
_{1}is a part of Lojban text representing rule 'sumti' that has the only terminal 'KOhA #' or 'lerfu-string /BOI#/' in the formal grammar of the first edition of the book 'The Complete Lojban Language'.

- be'ei'oi
- ternary mekso operator: x
_{1}th Bergelson multiplicative interval with exponents bounded from above by function x_{2}and with sequence of shifts x_{3}, where exponents belong to set x_{4} - fa'ai
- mathematical ordered n-ary operator: (pointwise) functional left composition; X
_{1 \circ X}. - ja'oi
- permutation cycle writer notation start
- kau'ai
- Microdigit-spanning endianness binary-toggle.
- kau'au
- Macrodigit-spanning endianness binary-toggle.
- kei'ai
- mekso style converter: elementwise application of operator
- kei'au
- mekso operator: finite result set derived from/on set A with/due to operator/function B under ordering of application C
- noi'au
- number/interpreted mathematical object non-restrictive clause
- poi'au
- number/interpreted mathematical object restrictive clause
- sau'i
- mekso n-ary operator: reciprocal of the sum of the reciprocal of each of X
_{1}, X_{2}, ..., X_{n}(for any natural number n); 1/((1/X_{1) + (1/X}. - se'u'o
- selbri conversion question
- slurume
- x
_{1}is a part of Lojban text representing rule 'free' according to the first edition of the book 'The Complete Lojban Language'. - terkanu
- x
_{1}is a part of Lojban text representing rule 'quantifier' according to the first edition of the book 'The Complete Lojban Language'. - ci zei mektika
- x
_{1}is a part of Lojban text representing rule 'operand-3' according to the first edition of the book 'The Complete Lojban Language'. - xa zei sumtika
- x
_{1}is a part of Lojban text representing rule 'sumti-6' according to the first edition of the book 'The Complete Lojban Language'.